Definition of chloroform in US English:

chloroform

noun

  • A colorless, volatile, sweet-smelling liquid used as a solvent and formerly as a general anesthetic.

    Alternative name: trichloromethane; chemical formula: CHCl₃

    • ‘However, when chlorine combines with other materials in water, it forms chloroform and related chemicals called trihalomethanes.’
    • ‘Finally, the drugs are recovered by using industrial solvents, such as acetone, ether, or chloroform.’
    • ‘This is a modified mixture of Carnoy's fluid containing absolute alcohol, chloroform, and glacial acetic acid.’
    • ‘In particular, chloroform would not hinder condensation reactions as water does.’
    • ‘The last step in the process is to wash the methamphetamine in chloroform, tolulene or ether.’
    • ‘The literature cites the use of ether, chloroform, acetone and mineral oil as possible options.’
    • ‘In a first step, the two lipids were dissolved in chloroform and the solvent evaporated under vacuum overnight.’
    • ‘Some of the volatile substances in these products include toluene, chloroform, butane, propane, acetone, and many halogenated hydrocarbons.’
    • ‘While he is dozy from drink, the ‘Little Nurse’ passes a cloth, on which she has dropped some liquid chloroform, in front of his face.’
    • ‘The methanol extract was evaporated and partitioned with n-hexane, benzene, trichloromethane, ethyl acetate and n-butanol, consecutively.’
    • ‘The researchers used methanol, chloroform, hexane, or water to extract residues from pot sherds.’
    • ‘I could give open mask chloroform or ether, but I might be arrested for doing it now.’
    • ‘In early days, the dose of chloroform or of ether had to be sufficient to achieve all the required effects, but in modern practice the anaesthetic drug is used only to produce the loss of consciousness and amnesia.’
    • ‘It does not dissolve in water, although it does dissolve in many organic liquids, such as benzene, chloroform, and carbon disulfide.’
    • ‘The hypophase was removed with a Pasteur pipette and the aqueous phase re-extracted with chloroform until it was colourless.’
    • ‘These chemicals were mostly chlorinated solvents such as chloroform.’
    • ‘The residue was chromatographed on a column of silica gel prepared with chloroform.’
    • ‘Cholesterol is soluble in chloroform, ether, benzene, or hot alcohol and other organic solvents.’
    • ‘These crystals are confirmed by their solubility in chloroform and ether.’
    • ‘Furthermore, the difference in molecular structures may lead to the difference in the solvent cavities formed by chloroform molecules.’

verb

[with object]
  • Render (someone) unconscious with chloroform.

    • ‘Mrs. Torpey chloroformed the jeweler, after which her husband restrained him and stole his merchandise.’
    • ‘I was chloroformed with only the slightest amount of hesitation by Angela, and my last thought was…’
    • ‘And even worse, the headmistress' dog Trixie has been chloroformed and thrown down a well.’
    • ‘The surgeon comes to look at Paul, who refuses to be chloroformed out of fear that they will amputate his leg.’
    • ‘I understood now how it was the cat had howled until I chloroformed it.’
    • ‘He chloroformed me’ she continued, and her eyes widened in comprehension as Jackson shot her a furtive glance, then glanced over at the nurse, who was listening to the exchange with interest.’
    • ‘I pretended to be asleep and held my breath when you tried to chloroform me, you idiot!’
    • ‘I've gotten chloroformed worse and stayed awake.’
    • ‘Somebody sneaks in and chloroforms you, or sprays knock-out gas under your door, and while you are comatose and unresisting, your worldly goods are stripped.’
    • ‘Once that clears up, Vainio turns his prey down a dark passage, chloroforming them again until all you can hear is their drugged, staggering heartbeats and the swaying neon of the red-light district.’
    • ‘Our other friends, who wanted to get some dinner, almost had to chloroform us to get us out of there.’
    • ‘Within minutes our helpful staff members will be leaping out of your unmarked van to chloroform and tie-up the person or persons of your choosing.’
    • ‘There's a guestbook you can sign, detailing how you too are attracted to people who have been chloroformed, but you might run the fear of pressing the wrong button and have sleep gas come from your computer.’
    • ‘It's not as though unclaimed children are chloroformed and sold into slavery.’
    • ‘As Marcus called Cole to explain that he was leaving town, he was attacked from behind and chloroformed.’
    • ‘The cops were chloroformed; he wasn't trying to draw too much attention.’
    • ‘Nothing to report for today, because it's a day of duty - I work at home on Mondays, and since this means chloroforming the baby and locking the dog in the garage, there are no heartwarming tales.’

Origin

Mid 19th century: from chloro- (representing chlorine) + form- from formic acid.

Pronunciation

chloroform

/ˈklɔrəˌfɔrm//ˈklôrəˌfôrm/